IEC 60904-9:2007 Photovoltaic devices –Part 9: Solar simulator performance requirements were mentioned.The purpose of this standard is to define classifications of solar simulators for use in indoor measurements of terrestrial photovoltaic devices, solar simulators are classified as A, B or C for each of the three categories based on criteria of spectral distribution match, irradiance non-uniformity on the test plane and temporal instability.

Definition of solar simulator classifications was shown.

Spectral match of a solar simulator is defined by the deviation from AM 1,5 reference spectral irradiance as laid down in IEC 60904-3.

Safety operation practices were briefed.The lamp may explode in either the hot or cold state (Wear face mask when examining the lamp house or the lamp bulb)Check the windlass lock position before and after loading PV module)

Solar Simulator Illumination Principle was mentioned.

Each single lamp set illuminates the same area (the whole effective test area) on the testing plane

10.6 Performance at STC and NOCTPerformance at STC: 1000W/m2, close shutter until stable; keep module below 25C; open shutter and illuminate it up to 20C, using I-V Tracer measure the characteristic of the curvePerformance at NOCT: 800W/m2, close shutter until stable; keep module below NOCT; open shutter and illuminated up to NOCT, using I-V Tracer measure the characteristic of the curve

10.7 Performance at low irradianceUsing 200 W/m2, close shutter until stable; keep module below 25C+2C; illuminate it up to 25C+2C; using I-V Tracer measure the characteristic of the curve

For PV testing (terrestrial use), the Standard Test Condition (STC) is defined as an insolation of 1000W/m2 (1 SUN) at 25 °C and with a solar spectral distribution equivalent to global AM1.5, per ASTM G173-03 and IEC 60904-3.(Air Mass is the measure of how far light travels through the Earth's atmosphere. One air mass, or AM1, is the thickness of the Earth's atmosphere. Air mass zero (AM0) describes solar irradiance in space, where it is unaffected by the atmosphere. The power density of AM1.5 light is about 1,000W/m2; the power density of AM0 light is about 1,360W/m2, which is considered to be the solar constant.)

Normal Operating Cell Temperature (NOCT): The estimated temperature of a solar PV module when it is operating under 800 W/m2 irradiance, 20°C ambient temperature and a wind speed of 1 meter per second. NOCT is used to estimate the nominal operating temperature of a module in the field.

For more information:HKSTP Laboratory: www.lab.hkstp.orgAll solar related IEC standards mentioned in the seminar.

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作者筆名劍如虹，畢業於香港城市大學及香港理工大學，學術範圍包括應用科學，應用物理，電腦，化學及環境工程等，以業餘時間攻讀完工程管理博士學位。由於喜歡武俠故事式電腦遊戲，才引發奇想，把品質管理理論用武俠小說方式表達。作者現任職品質經理，曾多次於專業學會主辦的國際會議和學術期刊發表論文及研究報告。
Dr. Lotto Lai has 20 year hands-on experience in scientific research, quality assurance and management in Commercial Laboratory, University Testing Centre, Certification Body and Consultants Firm.
He is Former Chairman & Fellow in HKSQ, MHKIE, FASQ, CMQOE and IRCA QMS Lead Auditor, as well as, Asso. Academician in IAQ.